US20020087225A1 - Portable computing device having a low power media player - Google Patents

Portable computing device having a low power media player Download PDF

Info

Publication number
US20020087225A1
US20020087225A1 US09/755,553 US75555301A US2002087225A1 US 20020087225 A1 US20020087225 A1 US 20020087225A1 US 75555301 A US75555301 A US 75555301A US 2002087225 A1 US2002087225 A1 US 2002087225A1
Authority
US
United States
Prior art keywords
processor
audio
digital representation
computing device
portable computing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/755,553
Other languages
English (en)
Inventor
Gary Howard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Priority to US09/755,553 priority Critical patent/US20020087225A1/en
Assigned to HEWLETT-PACKARD COMPANY reassignment HEWLETT-PACKARD COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOWARD, GARY M.
Priority to JP2001385605A priority patent/JP2002287859A/ja
Priority to EP01310697A priority patent/EP1221645A3/fr
Publication of US20020087225A1 publication Critical patent/US20020087225A1/en
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY L.P. reassignment HEWLETT-PACKARD DEVELOPMENT COMPANY L.P. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEWLETT-PACKARD COMPANY
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data

Definitions

  • the invention relates generally to the field of computing devices and, more particularly, to the use of multimedia devices in portable computing devices.
  • a portable computing device makes use of a first processor, which is used to provide most of the functionality of the portable computing device, and a second processor which is used to read audio files from an random access memory and present these to the user.
  • the first processor as well as the internal hard drive of the portable computer unit, are placed into state which consumes very little power. This allows the portable computer unit to be used as an audio player for extended periods of time.
  • video information can be stored in a random access memory element and read by way of a second processor while the first processor and any associated internal disk drives are placed in a low-power state.
  • FIG. 1 is a block diagram of a portable computing device having a low power media player in accordance with a preferred embodiment of the invention
  • FIG. 2 is a block diagram of a method of operating a portable computing device having a low power media player in accordance with a preferred embodiment of the invention.
  • a portable computing device having a low power media player enables a user to play multimedia files, such as audio and video, using a secondary processor which is functionally separated from the central processing unit of the portable computing device. This enables the user to play multimedia files for a longer period of time than is currently possible without requiring an increase in the size and weight of the associated battery or other stored energy supply module.
  • many functions of the portable computing device are placed in a special low-power mode while the secondary processor is used to read multimedia files from a random access memory element without requiring operation of either the central processing unit or an internal disk drive of the portable computing device.
  • FIG. 1 is a block diagram of a portable computing device ( 10 ) having a low power media player in accordance with a preferred embodiment of the invention.
  • first processor 20 and second processor 40 are at least functionally separated from each other, and may be physically separated as well.
  • first processor 20 performs many general-purpose functions which define the operations of the portable computing device. Therefore, first processor 20 may be an Intel processor or other suitable central processing unit used in conventional portable computing devices.
  • first processor 20 has access to primary power from power supply 110 , as well as access to random access memory element 30 .
  • first processor 20 desirably includes interfaces to network interface 70 , internal disk drive 50 , and compact disc drive 60 . Further, first processor 20 may also have access to peripheral 90 , which represents an external memory element such as a ZIP drive, or other external memory storage element.
  • second processor 40 is at least functionally separate from first processor 20 .
  • this functional separation may be achieved by way of the use of distinct processor modules represented by first and second processors 20 and 40 , respectively, or may be achieved by way of a single processor which is partitioned in order to allow execution of only a subset of functions during specific modes of operation.
  • both first and second processors 20 and 40 are capable of accessing random access memory element 30 .
  • this includes the capability to both read and write to random access memory element 30
  • second processor 40 need only include a capability to read data from random access memory element 30 .
  • first processor 20 is capable of communicating with internal disk drive 50 , peripheral 90 , compact disc drive 60 , and network interface 70 .
  • Network interface 70 may include a suitable modem that enables access to a network such as the Internet.
  • second processor 40 performs only a subset of the operations performed by first processor 20 , and therefore places reduced power consumption demands on power supply 1 10 .
  • Second processor 40 can be an MP3 player or other type of digital audio player which converts a first digital representation of audio to an analog format which can be conveyed along an electrical conductor for conversion to acoustic energy.
  • second processor 40 and first processor 20 maintain a coherency interface with each other in order to coordinate reading and writing functions to random access memory element 30 , and to perform other low-level coordination and timing tasks.
  • Second processor 40 can also include an interface to external memory module 120 which may be a removable memory cartridge, such as those compliant with Personal Computer Memory Card International Association (PCMCIA) externally removable memory card. Further, second processor 40 desirably incorporates an interface to controls 100 which allow direct control over the operations of second processor 40 by the user of portable computing device 10 .
  • external memory module 120 may be a removable memory cartridge, such as those compliant with Personal Computer Memory Card International Association (PCMCIA) externally removable memory card.
  • PCMCIA Personal Computer Memory Card International Association
  • portable computing device 10 functions to allow a user to play music using second processor 40 while requiring a substantially reduced amount of energy from power supply 110 .
  • This feature is accomplished by first directing first processor 20 to access one or one or more of internal disk drive 50 , compact disc drive 60 , peripheral 90 , and network interface 70 in order to read a digital representation of audio from the selected storage media.
  • These digital representations can include those used in conventional compact disc players.
  • First processor 20 then reformats the digital representation of this audio into a format such as MP3 for storage into random access memory element 30 .
  • first processor 20 When first processor 20 has reformatted a substantial amount of digital audio and placed the reformatted digital audio into random access memory element 30 , a computer program which influences the operation of first processor 20 commands the processor to reduce, or perhaps even to bring to a halt, the operations of the processor as well as the operations of internal disk drive 50 .
  • the program may also reduce operations of several other elements of portable computing device 10 in order to reduce the demands on power supply 110 .
  • second processor 40 can read the digital representation of audio from random access memory element 30 and format this representation into an analog audio format. Second processor 40 can transmit this through output 42 and on to speakers 45 . In this manner, second processor 40 is the principal consumer of electrical energy from power supply 110 while first processor 20 operates in a sleep mode. Therefore, with few other functional elements of portable computing device 10 operating at full capacity, the energy provided by power supply 110 can be made to last for a much longer period of time. During this time, second processor 40 reads digital representations of audio from random access memory element 30 and plays them to the user of portable computing device 10 through speakers 45 . Although not shown in FIG. 1, the analog audio can also be conveyed to an external output for use with a headset or other device used to present audio to a user. This can include an entertainment system where the analog audio is further manipulated or amplified and presented to the user.
  • an audio file which requires 50 Megabytes of space on a compact disc drive 60 can be reformatted to require only about 5 Megabytes using MP3.
  • This 5-megabyte file can then be stored into random access memory element 30 and can provide about 5 minutes of analog audio.
  • second processor 40 incorporates inputs for controls 100 .
  • controls 100 may include a selector which instructs second processor 40 to communicate with first processor 20 so that the first processor can read an initial set of audio files from one of internal disk drive 50 , peripheral 90 , compact disc drive 60 , and network interface 70 .
  • first processor 20 can then reformat new audio files from one ore more of the aforementioned devices and store them into random access memory element 30 .
  • first processor 20 can return to a low power mode.
  • Second processor 40 can then access the new audio files from random access memory element 30 and make them available to the user of portable computing device 10 by way of speakers 45 .
  • second processor 40 can be programmed to periodically reinitiate the operations of first processor 20 so that the first processor can ensure that new audio files are periodically stored in random access memory element 30 .
  • first processor 20 is awakened only occasionally in order to update the contents of random access memory element 30 , thereby ensuring that new material is constantly available to the user.
  • Second processor 40 can be further programmed to provide an indication of the audio file currently being played through a text display (which is not shown in FIG. 1.) This can allow the track number or a brief title to be presented to the user by way of a low-power display, such as a liquid crystal.
  • FIG. 2 is a block diagram of a method of operating a portable computing device having a low power media player in accordance with a preferred embodiment of the invention.
  • the apparatus shown in FIG. 1 is suitable for carrying out the method of FIG. 2, with blocks 200 through 230 being preferably performed by a first processor.
  • a program storage device readable by the portable computing device of FIG. 1 should tangibly embody a program of instructions executable by a first and second processor in order to perform a method which directs the portable computing device to enter a low-power sleep mode and present audio to a user.
  • This program storage media can be embodied in a computer diskette, compact disc, or could be downloaded from site on the World Wide Web.
  • a digital representation of audio is read from a storage media.
  • This storage media can include a peripheral device (such as a ZIP drive or other external mass storage device) compact disc player, network interface, or internal disk drive.
  • the digital representation of the audio is reformatted to a second format that makes efficient use of memory but maintains adequate sound quality, such as MP3.
  • the first processor stores the digital representation of audio into a random access memory element.
  • the operations of the first processor are reduced in order to reduce the power consumption demands of the first processor on a power supply.
  • audio files are read from random access memory, by a secondary processor, which is at least functionally separated from the first processor.
  • these digital representations of audio are converted to an analog audio format and converted to sound by way of at least one speaker or other type of transducer.
  • operation of the first processor is reinitiated in order to refresh the memory of a random access memory element with new audio files. The method can then return to block 200 so that additional audio files can be read from a storage medium by the first processor.
  • a first processor accesses a storage device in order to read video information from the storage device, such as a digital videodisc player.
  • the first processor then stores, into a random access memory element, a digital representation of the video.
  • the operations of the first processor are then reduced and a second processor reading the digital representation of the video from the random access memory element and converts the video to a format which can be viewed by a user, such as MPEG.
  • the first processor is a general-purpose processor which provides the bulk of the functionality of the personal computing device, and the second processor provides those functions related to the processing and display of video to the user without requiring substantial functionality of the first processor.
  • the operation of the first processor can then be occasionally reinitiated in order load additional video into the random access memory element from the storage element.
  • a portable computing device having a low power media player enables a user to play multimedia files, such as audio and video, using a secondary processor which is functionally separated from the central processing unit of the portable computing device.
  • This enables the user to play multimedia files for a longer period of time than is currently possible without requiring an increase in the size and weight of the associated battery or other stored energy supply module.
  • many functions of the portable computing device are placed in a special low-power mode while the secondary processor is used to read multimedia files from a random access memory element without requiring operation of either the central processing unit or an internal disk drive of the portable computing device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Power Sources (AREA)
US09/755,553 2001-01-03 2001-01-03 Portable computing device having a low power media player Abandoned US20020087225A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/755,553 US20020087225A1 (en) 2001-01-03 2001-01-03 Portable computing device having a low power media player
JP2001385605A JP2002287859A (ja) 2001-01-03 2001-12-19 低電力メディアプレーヤを備えたポータブルコンピューティングデバイス
EP01310697A EP1221645A3 (fr) 2001-01-03 2001-12-20 Dispositif de calcul portatif avec lecteur de médias à basse puissance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/755,553 US20020087225A1 (en) 2001-01-03 2001-01-03 Portable computing device having a low power media player

Publications (1)

Publication Number Publication Date
US20020087225A1 true US20020087225A1 (en) 2002-07-04

Family

ID=25039634

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/755,553 Abandoned US20020087225A1 (en) 2001-01-03 2001-01-03 Portable computing device having a low power media player

Country Status (3)

Country Link
US (1) US20020087225A1 (fr)
EP (1) EP1221645A3 (fr)
JP (1) JP2002287859A (fr)

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040165734A1 (en) * 2003-03-20 2004-08-26 Bing Li Audio system for a vehicle
US6813661B2 (en) 2003-03-20 2004-11-02 Bing Li Portable audio system
US20040225901A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Method and system for auxiliary processing of information for a computing device
US20040222978A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Control and communications panel for a computer system
US20040222977A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Notification lights, locations and rules for a computer system
US20040223599A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Computer system with do not disturb system and method
US20040223061A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Computer camera system and method for reducing parallax
US20040225892A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Method and system for activating a computer system
US20050066209A1 (en) * 2003-09-18 2005-03-24 Kee Martin J. Portable electronic device having high and low power processors operable in a low power mode
US20050066006A1 (en) * 2003-09-18 2005-03-24 Vulcan Portals Inc. Low power email functionality for an electronic device
US20050064911A1 (en) * 2003-09-18 2005-03-24 Vulcan Portals, Inc. User interface for a secondary display module of a mobile electronic device
US20050069101A1 (en) * 2003-09-30 2005-03-31 Microsoft Corporation System and method for using telephony controls on a personal computer
US20050068423A1 (en) * 2003-09-30 2005-03-31 Microsoft Corporation Method and system for capturing video on a personal computer
US20050076088A1 (en) * 2003-09-18 2005-04-07 Kee Martin J. Removable module for a portable electronic device having stand-alone and system functionality
US20050076256A1 (en) * 2003-09-18 2005-04-07 Vulcan Portals Inc. Method and apparatus for operating an electronic device in a low power mode
US20050073515A1 (en) * 2003-09-18 2005-04-07 Martin Kee Processor module packaging for a portable electronic device display
US20050273663A1 (en) * 2004-05-21 2005-12-08 Samsung Electronics Co., Ltd. Computer system, method, and medium for switching operating system
US20060143409A1 (en) * 2004-12-29 2006-06-29 Merrell Quinn W Method and apparatus for providing a low power mode for a processor while maintaining snoop throughput
US20060164324A1 (en) * 2004-11-23 2006-07-27 Microsoft Corporation Sending notifications to auxiliary displays
US20060212733A1 (en) * 2002-08-14 2006-09-21 Hamilton Tony G Method and apparatus for a computing system having an active sleep mode CPU that uses the Cache of a normal active mode CPU
US20060232494A1 (en) * 2005-04-15 2006-10-19 Microsoft Corporation Automatic cross-display coordination
US20060242590A1 (en) * 2005-04-21 2006-10-26 Microsoft Corporation Simple content format for auxiliary display devices
US20060255964A1 (en) * 2005-05-11 2006-11-16 Intel Corporation Seamless transition of operating environments in mobile systems for power optimization
US20070016810A1 (en) * 2005-06-30 2007-01-18 Seiko Epson Corporation Information processing apparatus and program for causing computer to execute power control method
US20070035866A1 (en) * 2005-08-11 2007-02-15 Seagate Technology Llc Decoder with energization control circuit
US20070079161A1 (en) * 2005-09-30 2007-04-05 Broadcom Corporation Power-efficient technique for invoking a co-processor
US20070136650A1 (en) * 2005-12-09 2007-06-14 Hon Hai Precision Industry Co., Ltd. Low power multimedia playing method for portable computer
US20070150719A1 (en) * 2003-09-30 2007-06-28 Microsoft Corporation Method and system for unified audio control on a personal computer
US20070195007A1 (en) * 2003-05-05 2007-08-23 Microsoft Corporation Method and system for auxiliary display of information for a computing device
US20070236407A1 (en) * 2006-04-05 2007-10-11 Portalplayer, Inc. Method and system for displaying data from auxiliary display subsystem of a notebook on a main display of the notebook
US20070239920A1 (en) * 2006-04-05 2007-10-11 Portalplayer, Inc. Method and system for communication between a secondary processor and an auxiliary display subsystem of a notebook
US20080014829A1 (en) * 2006-04-07 2008-01-17 Ian Dyer Multifunction removable memory device with ornamental housing
US20080037741A1 (en) * 2003-05-05 2008-02-14 Microsoft Corporation Real-Time Communications Architecture And Methods For Use With A Personal Computer System
US7376913B1 (en) 2003-01-07 2008-05-20 Vulcan Portals Inc. Navigation and selection control for a hand-held portable computer
US20080168201A1 (en) * 2007-01-07 2008-07-10 De Cesare Joshua Methods and Systems for Time Keeping in a Data Processing System
US7426647B2 (en) * 2003-09-18 2008-09-16 Vulcan Portals Inc. Low power media player for an electronic device
US20080250202A1 (en) * 2004-03-08 2008-10-09 Sandisk Corporation Flash controller cache architecture
US20090240967A1 (en) * 2008-03-18 2009-09-24 Qualcomm Incorporation Efficient low power retrieval techniques of media data from non-volatile memory
US7634780B2 (en) 2004-11-23 2009-12-15 Microsoft Corporation Method and system for exchanging data between computer systems and auxiliary displays
US20100026692A1 (en) * 2008-08-04 2010-02-04 Nvidia Corporation Hybrid graphic display
US7711868B2 (en) 2004-11-23 2010-05-04 Microsoft Corporation Waking a main computer system to pre-fetch data for an auxiliary computing device
US20100131623A1 (en) * 2008-11-24 2010-05-27 Nvidia Corporation Configuring Display Properties Of Display Units On Remote Systems
US20100138768A1 (en) * 2008-12-02 2010-06-03 Nvidia Corporation Simplifying Configuration Of Multiple Display Units For Common Use
US7784065B2 (en) 2005-02-07 2010-08-24 Microsoft Corporation Interface for consistent program interaction with auxiliary computing devices
US20100220102A1 (en) * 2009-02-27 2010-09-02 Nvidia Corporation Multiple graphics processing unit system and method
US20100275033A1 (en) * 2001-05-16 2010-10-28 Synaptics Incorporated Touch screen with user interface enhancement
US7827232B2 (en) 2003-05-05 2010-11-02 Microsoft Corporation Record button on a computer system
US20100315427A1 (en) * 2009-06-15 2010-12-16 Nvidia Corporation Multiple graphics processing unit display synchronization system and method
US20110025696A1 (en) * 2009-07-29 2011-02-03 Nvidia Corporation Method and system for dynamically adding and removing display modes coordinated across multiple graphcis processing units
US7886171B2 (en) 2006-08-29 2011-02-08 Panasonic Corporation Music reproducing device that temporarily memorizes music information from notifying section when operating function unit is inactive
US20110124375A1 (en) * 2008-04-07 2011-05-26 St-Ericsson Sa Mobile phone with low-power media rendering sub-system
US20110148436A1 (en) * 2009-12-18 2011-06-23 Synaptics Incorporated System and method for determining a number of objects in a capacitive sensing region using signal grouping
US20110148438A1 (en) * 2009-12-18 2011-06-23 Synaptics Incorporated System and method for determining a number of objects in a capacitive sensing region using a shape factor
US20110157189A1 (en) * 2009-12-31 2011-06-30 Nvidia Corporation Shared buffer techniques for heterogeneous hybrid graphics
US20110210976A1 (en) * 2009-09-16 2011-09-01 Nvidia Corporation Techniques for transferring graphics data from system memory to a discrete gpu
US20110219252A1 (en) * 2007-01-07 2011-09-08 De Cesare Joshua Methods and Systems for Power Management in a Data Processing System
US20110245946A1 (en) * 2010-04-01 2011-10-06 Boo-Jin Kim Low power audio play device and method
KR101168498B1 (ko) 2007-09-07 2012-07-27 콸콤 인코포레이티드 전력 효율적인 일괄 프레임 오디오 디코딩 장치, 시스템 및 방법
US8564555B2 (en) 2009-04-30 2013-10-22 Synaptics Incorporated Operating a touch screen control system according to a plurality of rule sets
US8635554B2 (en) 2003-05-20 2014-01-21 Microsoft Corporation Enhanced telephony computer user interface allowing user interaction and control of a telephone using a personal computer
US20140114668A1 (en) * 2006-09-29 2014-04-24 Pradeep Sebestian Apparatus, system and method for buffering audio data to allow low power states in a processing system during audio playback
US8743019B1 (en) 2005-05-17 2014-06-03 Nvidia Corporation System and method for abstracting computer displays across a host-client network
US8749561B1 (en) 2003-03-14 2014-06-10 Nvidia Corporation Method and system for coordinated data execution using a primary graphics processor and a secondary graphics processor
US20140281615A1 (en) * 2013-03-12 2014-09-18 Selvakumar Panneer Techniques for power saving on graphics-related workloads
US9818379B2 (en) 2013-08-08 2017-11-14 Nvidia Corporation Pixel data transmission over multiple pixel interfaces
US9842532B2 (en) 2013-09-09 2017-12-12 Nvidia Corporation Remote display rendering for electronic devices

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7117379B2 (en) 2002-08-14 2006-10-03 Intel Corporation Method and apparatus for a computing system having an active sleep mode
AU2003279473A1 (en) * 2002-12-30 2004-07-22 Koninklijke Philips Electronics N.V. Optical record carrier recording apparatus
US7114090B2 (en) 2003-02-14 2006-09-26 Intel Corporation Computing system with operational low power states
US7254730B2 (en) 2003-02-14 2007-08-07 Intel Corporation Method and apparatus for a user to interface with a mobile computing device
US7080271B2 (en) 2003-02-14 2006-07-18 Intel Corporation Non main CPU/OS based operational environment
CN100349097C (zh) * 2004-02-25 2007-11-14 英特维数位科技股份有限公司 计算机系统的电源管理架构及方法
KR101177125B1 (ko) * 2005-06-11 2012-08-24 엘지전자 주식회사 멀티-코어 프로세서의 합성모드 구현 방법 및 장치
KR100667836B1 (ko) * 2005-11-21 2007-01-11 삼성전자주식회사 기록매체에 데이터를 기록 및 재생하는 장치 및 방법
KR101110155B1 (ko) * 2009-12-21 2012-01-31 주식회사 넥스트파피루스 전자책 단말의 디스플레이 제어 장치 및 그 방법
KR20110134127A (ko) * 2010-06-08 2011-12-14 삼성전자주식회사 오디오 데이터 디코딩 장치 및 방법
KR20120080356A (ko) * 2011-01-07 2012-07-17 삼성전자주식회사 휴대 단말기 및 그 휴대 단말기에서 오디오 데이터 처리 방법
WO2013147765A1 (fr) * 2012-03-28 2013-10-03 Intel Corporation Traitement audio durant un fonctionnement à basse puissance

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740828A (en) * 1983-12-24 1988-04-26 Canon Kabushiki Kaisha Image sensing apparatus having a low-resolution monitor, means for reducing the amount of information in an image signal, and switching means for reducing power consumption in various operating modes
US4829473A (en) * 1986-07-18 1989-05-09 Commodore-Amiga, Inc. Peripheral control circuitry for personal computer
US5021950A (en) * 1984-12-27 1991-06-04 Kabushiki Kaisha Toshiba Multiprocessor system with standby function
US5809314A (en) * 1994-12-23 1998-09-15 Intel Corporation Method of monitoring system bus traffic by a CPU operating with reduced power
US5838983A (en) * 1996-08-20 1998-11-17 Compaq Computer Corporation Portable computer with low power audio CD-player
US5963530A (en) * 1997-11-13 1999-10-05 Ward; Vera CD recording device with auxillary input
US6006285A (en) * 1997-04-30 1999-12-21 Compaq Computer Corporation Computer system capable of playing audio CDs in a CD-ROM drive independent of an operating system
US6070215A (en) * 1998-03-13 2000-05-30 Compaq Computer Corporation Computer system with improved transition to low power operation
US6073187A (en) * 1997-06-20 2000-06-06 Compaq Computer Corporation Controls and indicators available to a user for a secondary operational mode of a portable computer which is open or closed state of the computer case
US6085329A (en) * 1998-01-13 2000-07-04 Micron Electronics, Inc. Portable computer with low power CD-player mode
US6377530B1 (en) * 1999-02-12 2002-04-23 Compaq Computer Corporation System and method for playing compressed audio data
US6423892B1 (en) * 2001-01-29 2002-07-23 Koninklijke Philips Electronics N.V. Method, wireless MP3 player and system for downloading MP3 files from the internet
US6553181B2 (en) * 1998-12-16 2003-04-22 Kabushiki Kaisha Toshiba Optical disc for storing moving pictures with text information and apparatus using the disc
US6694089B2 (en) * 1997-12-31 2004-02-17 Samsung Electronics Co., Ltd. Optical disk recording device for producing disks adapted for direct access reproduction and a direct access reproducing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6226237B1 (en) * 1998-03-26 2001-05-01 O2 Micro International Ltd. Low power CD-ROM player for portable computer

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740828A (en) * 1983-12-24 1988-04-26 Canon Kabushiki Kaisha Image sensing apparatus having a low-resolution monitor, means for reducing the amount of information in an image signal, and switching means for reducing power consumption in various operating modes
US5021950A (en) * 1984-12-27 1991-06-04 Kabushiki Kaisha Toshiba Multiprocessor system with standby function
US4829473A (en) * 1986-07-18 1989-05-09 Commodore-Amiga, Inc. Peripheral control circuitry for personal computer
US5809314A (en) * 1994-12-23 1998-09-15 Intel Corporation Method of monitoring system bus traffic by a CPU operating with reduced power
US5838983A (en) * 1996-08-20 1998-11-17 Compaq Computer Corporation Portable computer with low power audio CD-player
US6006285A (en) * 1997-04-30 1999-12-21 Compaq Computer Corporation Computer system capable of playing audio CDs in a CD-ROM drive independent of an operating system
US6073187A (en) * 1997-06-20 2000-06-06 Compaq Computer Corporation Controls and indicators available to a user for a secondary operational mode of a portable computer which is open or closed state of the computer case
US5963530A (en) * 1997-11-13 1999-10-05 Ward; Vera CD recording device with auxillary input
US6694089B2 (en) * 1997-12-31 2004-02-17 Samsung Electronics Co., Ltd. Optical disk recording device for producing disks adapted for direct access reproduction and a direct access reproducing method thereof
US6085329A (en) * 1998-01-13 2000-07-04 Micron Electronics, Inc. Portable computer with low power CD-player mode
US6070215A (en) * 1998-03-13 2000-05-30 Compaq Computer Corporation Computer system with improved transition to low power operation
US6553181B2 (en) * 1998-12-16 2003-04-22 Kabushiki Kaisha Toshiba Optical disc for storing moving pictures with text information and apparatus using the disc
US6377530B1 (en) * 1999-02-12 2002-04-23 Compaq Computer Corporation System and method for playing compressed audio data
US6423892B1 (en) * 2001-01-29 2002-07-23 Koninklijke Philips Electronics N.V. Method, wireless MP3 player and system for downloading MP3 files from the internet

Cited By (139)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8402372B2 (en) * 2001-05-16 2013-03-19 Synaptics Incorporated Touch screen with user interface enhancement
US20100275033A1 (en) * 2001-05-16 2010-10-28 Synaptics Incorporated Touch screen with user interface enhancement
US8560947B2 (en) 2001-05-16 2013-10-15 Synaptics Incorporated Touch screen with user interface enhancement
US20060212733A1 (en) * 2002-08-14 2006-09-21 Hamilton Tony G Method and apparatus for a computing system having an active sleep mode CPU that uses the Cache of a normal active mode CPU
US7734936B2 (en) * 2002-08-14 2010-06-08 Intel Corporation Method and apparatus for a computing system having an active sleep mode CPU that uses the cache of a normal active mode CPU
US20100250989A1 (en) * 2002-08-14 2010-09-30 Hamilton Tony G Method and apparatus for a computing system having an active sleep mode cpu that uses the cache of a normal active mode cpu
US8301916B2 (en) 2002-08-14 2012-10-30 Intel Corporation Method and apparatus for a computing system having an active sleep mode CPU that uses the cache of a normal active mode CPU
US7376913B1 (en) 2003-01-07 2008-05-20 Vulcan Portals Inc. Navigation and selection control for a hand-held portable computer
US9471952B2 (en) 2003-03-14 2016-10-18 Nvidia Corporation Method and system for coordinated data execution using a primary graphics processor and a secondary graphics processor
US8749561B1 (en) 2003-03-14 2014-06-10 Nvidia Corporation Method and system for coordinated data execution using a primary graphics processor and a secondary graphics processor
US20040165734A1 (en) * 2003-03-20 2004-08-26 Bing Li Audio system for a vehicle
US6813661B2 (en) 2003-03-20 2004-11-02 Bing Li Portable audio system
US20040222978A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Control and communications panel for a computer system
US7240228B2 (en) * 2003-05-05 2007-07-03 Microsoft Corporation Method and system for standby auxiliary processing of information for a computing device
US20070195007A1 (en) * 2003-05-05 2007-08-23 Microsoft Corporation Method and system for auxiliary display of information for a computing device
US7913182B2 (en) 2003-05-05 2011-03-22 Microsoft Corporation Method and system for auxiliary display of information for a computing device
US7827232B2 (en) 2003-05-05 2010-11-02 Microsoft Corporation Record button on a computer system
US20040223599A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Computer system with do not disturb system and method
US20040222977A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Notification lights, locations and rules for a computer system
US20040225892A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Method and system for activating a computer system
US20080037741A1 (en) * 2003-05-05 2008-02-14 Microsoft Corporation Real-Time Communications Architecture And Methods For Use With A Personal Computer System
US7372371B2 (en) 2003-05-05 2008-05-13 Microsoft Corporation Notification lights, locations and rules for a computer system
US7577429B2 (en) 2003-05-05 2009-08-18 Microsoft Corporation Real-time communications architecture and methods for use with a personal computer system
US20040225901A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Method and system for auxiliary processing of information for a computing device
US7551199B2 (en) 2003-05-05 2009-06-23 Microsoft Corporation Computer camera system and method for reducing parallax
US7443971B2 (en) 2003-05-05 2008-10-28 Microsoft Corporation Computer system with do not disturb system and method
US7424740B2 (en) 2003-05-05 2008-09-09 Microsoft Corporation Method and system for activating a computer system
US20040223061A1 (en) * 2003-05-05 2004-11-11 Bear Eric Gould Computer camera system and method for reducing parallax
US8694915B2 (en) 2003-05-20 2014-04-08 Microsoft Corporation Enhanced telephony computer user interface allowing user interaction and control of a telephone using a personal computer
US9392043B2 (en) 2003-05-20 2016-07-12 Microsoft Technology Licensing, Llc Enhanced telephony computer user interface allowing user interaction and control of a telephone using a personal computer
US8635554B2 (en) 2003-05-20 2014-01-21 Microsoft Corporation Enhanced telephony computer user interface allowing user interaction and control of a telephone using a personal computer
US20080288802A1 (en) * 2003-09-18 2008-11-20 Vulcan Portals Inc. Method and apparatus for operating an electronic device in a low power mode
US7702733B2 (en) 2003-09-18 2010-04-20 Vulcan Portals Inc. Low power email functionality for an electronic device
US20050066209A1 (en) * 2003-09-18 2005-03-24 Kee Martin J. Portable electronic device having high and low power processors operable in a low power mode
US7222206B2 (en) 2003-09-18 2007-05-22 Vulcan Portals, Inc. Removable module for a portable electronic device having stand-alone and system functionality
US7212399B2 (en) 2003-09-18 2007-05-01 Vulcan Portals, Inc. Processor module packaging for a portable electronic device display
US7271997B2 (en) 2003-09-18 2007-09-18 Vulcan Portals, Inc. Processor module packaging for a portable electronic device display
US20050066006A1 (en) * 2003-09-18 2005-03-24 Vulcan Portals Inc. Low power email functionality for an electronic device
US20050064911A1 (en) * 2003-09-18 2005-03-24 Vulcan Portals, Inc. User interface for a secondary display module of a mobile electronic device
US8046617B2 (en) 2003-09-18 2011-10-25 Vulcan Portals Inc. Method and apparatus for operating an electronic device in a low power mode with a low power mode application based on determined operating parameters
US20050076088A1 (en) * 2003-09-18 2005-04-07 Kee Martin J. Removable module for a portable electronic device having stand-alone and system functionality
US7996480B2 (en) 2003-09-18 2011-08-09 Vulcan Portals Inc. Low power email functionality for an electronic device
US20050076256A1 (en) * 2003-09-18 2005-04-07 Vulcan Portals Inc. Method and apparatus for operating an electronic device in a low power mode
US7925298B2 (en) * 2003-09-18 2011-04-12 Vulcan Portals Inc. User interface for a secondary display module of a mobile electronic device
US20050073515A1 (en) * 2003-09-18 2005-04-07 Martin Kee Processor module packaging for a portable electronic device display
WO2005036332A2 (fr) * 2003-09-18 2005-04-21 Vulcan Portals Inc. Dispositif electronique portatif possedant des processeurs grande puissance et faible puissance exploitable en mode basse puissance
US7426647B2 (en) * 2003-09-18 2008-09-16 Vulcan Portals Inc. Low power media player for an electronic device
WO2005036332A3 (fr) * 2003-09-18 2005-09-01 Vulcan Portals Inc Dispositif electronique portatif possedant des processeurs grande puissance et faible puissance exploitable en mode basse puissance
US20050237702A1 (en) * 2003-09-18 2005-10-27 Martin Kee Processor module packaging for a portable electronic device display
US20100174796A1 (en) * 2003-09-18 2010-07-08 Vulcan Portals Inc. Low power email functionality for an electronic device
AU2004281029B2 (en) * 2003-09-18 2010-06-24 Vulcan Portals Inc. Portable electronic device having high and low power processors operable in a low power mode
US20060129861A1 (en) * 2003-09-18 2006-06-15 Kee Martin J Portable electronic device having high and low power processors operable in a low power mode
US7500127B2 (en) 2003-09-18 2009-03-03 Vulcan Portals Inc. Method and apparatus for operating an electronic device in a low power mode
US8443179B2 (en) 2003-09-30 2013-05-14 Microsoft Corporation Method and system for unified audio control on a personal computer
US20050068423A1 (en) * 2003-09-30 2005-03-31 Microsoft Corporation Method and system for capturing video on a personal computer
US8166287B2 (en) 2003-09-30 2012-04-24 Microsoft Corporation Method and system for unified audio control on a personal computer
US20070150719A1 (en) * 2003-09-30 2007-06-28 Microsoft Corporation Method and system for unified audio control on a personal computer
US8245027B2 (en) 2003-09-30 2012-08-14 Microsoft Corporation Method and system for unified audio control on a personal computer
US7440556B2 (en) 2003-09-30 2008-10-21 Microsoft Corporation System and method for using telephony controls on a personal computer
US7548255B2 (en) 2003-09-30 2009-06-16 Microsoft Corporation Method and system for capturing video on a personal computer
US8127125B2 (en) 2003-09-30 2012-02-28 Microsoft Corporation Method and system for unified audio control on a personal computer
US7624259B2 (en) 2003-09-30 2009-11-24 Microsoft Corporation Method and system for unified audio control on a personal computer
US8644481B2 (en) 2003-09-30 2014-02-04 Microsoft Corporation Method and system for unified audio control on a personal computer
US20050069101A1 (en) * 2003-09-30 2005-03-31 Microsoft Corporation System and method for using telephony controls on a personal computer
US9678877B2 (en) * 2004-03-08 2017-06-13 Sandisk Technologies Llc Flash controller cache architecture
US20080250202A1 (en) * 2004-03-08 2008-10-09 Sandisk Corporation Flash controller cache architecture
US7886136B2 (en) * 2004-05-21 2011-02-08 Samsung Electronics Co., Ltd. Computer system, method, and medium for switching operating system
US20050273663A1 (en) * 2004-05-21 2005-12-08 Samsung Electronics Co., Ltd. Computer system, method, and medium for switching operating system
US7581034B2 (en) 2004-11-23 2009-08-25 Microsoft Corporation Sending notifications to auxiliary displays
US7711868B2 (en) 2004-11-23 2010-05-04 Microsoft Corporation Waking a main computer system to pre-fetch data for an auxiliary computing device
US7634780B2 (en) 2004-11-23 2009-12-15 Microsoft Corporation Method and system for exchanging data between computer systems and auxiliary displays
US20060164324A1 (en) * 2004-11-23 2006-07-27 Microsoft Corporation Sending notifications to auxiliary displays
US7694080B2 (en) * 2004-12-29 2010-04-06 Intel Corporation Method and apparatus for providing a low power mode for a processor while maintaining snoop throughput
US20060143409A1 (en) * 2004-12-29 2006-06-29 Merrell Quinn W Method and apparatus for providing a low power mode for a processor while maintaining snoop throughput
US7784065B2 (en) 2005-02-07 2010-08-24 Microsoft Corporation Interface for consistent program interaction with auxiliary computing devices
US20060232494A1 (en) * 2005-04-15 2006-10-19 Microsoft Corporation Automatic cross-display coordination
US20060242590A1 (en) * 2005-04-21 2006-10-26 Microsoft Corporation Simple content format for auxiliary display devices
US7500128B2 (en) * 2005-05-11 2009-03-03 Intel Corporation Mobile systems with seamless transition by activating second subsystem to continue operation of application executed by first subsystem as it enters into sleep mode
US20090172450A1 (en) * 2005-05-11 2009-07-02 Wong Hong W Mobile systems with seamless transition by activating second subsystem to continue operation of application executed by first subsystem as it enters sleep mode
US9436262B2 (en) 2005-05-11 2016-09-06 Intel Corporation Mobile systems with seamless transition by activating second subsystem to continue operation of application executed by first subsystem as it enters sleep mode
US20060255964A1 (en) * 2005-05-11 2006-11-16 Intel Corporation Seamless transition of operating environments in mobile systems for power optimization
US9983658B2 (en) 2005-05-11 2018-05-29 Intel Corporation Mobile systems with seamless transition by activating second subsystem to continue operation of application executed by first subsystem as it enters sleep mode
US8738951B2 (en) 2005-05-11 2014-05-27 Intel Corporation Mobile systems with seamless transition by activating second subsystem to continue operation of application executed by first subsystem as it enters sleep mode
US8743019B1 (en) 2005-05-17 2014-06-03 Nvidia Corporation System and method for abstracting computer displays across a host-client network
US7747880B2 (en) * 2005-06-30 2010-06-29 Seiko Epson Corporation Information processing apparatus and program for causing computer to execute power control method
US20070016810A1 (en) * 2005-06-30 2007-01-18 Seiko Epson Corporation Information processing apparatus and program for causing computer to execute power control method
US20070035866A1 (en) * 2005-08-11 2007-02-15 Seagate Technology Llc Decoder with energization control circuit
US7561357B2 (en) 2005-08-11 2009-07-14 Seagate Technology Llc Decoder with energization control circuit
US20070079161A1 (en) * 2005-09-30 2007-04-05 Broadcom Corporation Power-efficient technique for invoking a co-processor
US7496770B2 (en) * 2005-09-30 2009-02-24 Broadcom Corporation Power-efficient technique for invoking a co-processor
US20070136650A1 (en) * 2005-12-09 2007-06-14 Hon Hai Precision Industry Co., Ltd. Low power multimedia playing method for portable computer
US20070239920A1 (en) * 2006-04-05 2007-10-11 Portalplayer, Inc. Method and system for communication between a secondary processor and an auxiliary display subsystem of a notebook
US8775704B2 (en) * 2006-04-05 2014-07-08 Nvidia Corporation Method and system for communication between a secondary processor and an auxiliary display subsystem of a notebook
US8782291B2 (en) 2006-04-05 2014-07-15 Nvidia Corporation Notebook having secondary processor coupled by a multiplexer to a content source or disk drive
US20070236407A1 (en) * 2006-04-05 2007-10-11 Portalplayer, Inc. Method and system for displaying data from auxiliary display subsystem of a notebook on a main display of the notebook
US9195428B2 (en) 2006-04-05 2015-11-24 Nvidia Corporation Method and system for displaying data from auxiliary display subsystem of a notebook on a main display of the notebook
US20070239921A1 (en) * 2006-04-05 2007-10-11 Portalplayer, Inc. Notebook having secondary processor coupled by a multiplexer to a content source or disk drive
US8882561B2 (en) 2006-04-07 2014-11-11 Mattel, Inc. Multifunction removable memory device with ornamental housing
US20080014829A1 (en) * 2006-04-07 2008-01-17 Ian Dyer Multifunction removable memory device with ornamental housing
US7886171B2 (en) 2006-08-29 2011-02-08 Panasonic Corporation Music reproducing device that temporarily memorizes music information from notifying section when operating function unit is inactive
US20140114668A1 (en) * 2006-09-29 2014-04-24 Pradeep Sebestian Apparatus, system and method for buffering audio data to allow low power states in a processing system during audio playback
US8473764B2 (en) 2007-01-07 2013-06-25 Apple Inc. Methods and systems for power efficient instruction queue management in a data processing system
US8667198B2 (en) 2007-01-07 2014-03-04 Apple Inc. Methods and systems for time keeping in a data processing system
US8762755B2 (en) 2007-01-07 2014-06-24 Apple Inc. Methods and systems for power management in a data processing system
US8145928B2 (en) * 2007-01-07 2012-03-27 Apple Inc. Methods and systems for power management in a data processing system
US20080168201A1 (en) * 2007-01-07 2008-07-10 De Cesare Joshua Methods and Systems for Time Keeping in a Data Processing System
US20110219252A1 (en) * 2007-01-07 2011-09-08 De Cesare Joshua Methods and Systems for Power Management in a Data Processing System
KR101168498B1 (ko) 2007-09-07 2012-07-27 콸콤 인코포레이티드 전력 효율적인 일괄 프레임 오디오 디코딩 장치, 시스템 및 방법
US20090240967A1 (en) * 2008-03-18 2009-09-24 Qualcomm Incorporation Efficient low power retrieval techniques of media data from non-volatile memory
US8103891B2 (en) * 2008-03-18 2012-01-24 Qualcomm Incorporated Efficient low power retrieval techniques of media data from non-volatile memory
US20110124375A1 (en) * 2008-04-07 2011-05-26 St-Ericsson Sa Mobile phone with low-power media rendering sub-system
US8463333B2 (en) * 2008-04-07 2013-06-11 St-Ericsson Sa Mobile phone with low-power media rendering sub-system
US20100026692A1 (en) * 2008-08-04 2010-02-04 Nvidia Corporation Hybrid graphic display
US8736617B2 (en) 2008-08-04 2014-05-27 Nvidia Corporation Hybrid graphic display
US20100131623A1 (en) * 2008-11-24 2010-05-27 Nvidia Corporation Configuring Display Properties Of Display Units On Remote Systems
US8799425B2 (en) 2008-11-24 2014-08-05 Nvidia Corporation Configuring display properties of display units on remote systems
US20100138768A1 (en) * 2008-12-02 2010-06-03 Nvidia Corporation Simplifying Configuration Of Multiple Display Units For Common Use
US9075559B2 (en) 2009-02-27 2015-07-07 Nvidia Corporation Multiple graphics processing unit system and method
US20100220102A1 (en) * 2009-02-27 2010-09-02 Nvidia Corporation Multiple graphics processing unit system and method
US10254878B2 (en) 2009-04-30 2019-04-09 Synaptics Incorporated Operating a touch screen control system according to a plurality of rule sets
US8564555B2 (en) 2009-04-30 2013-10-22 Synaptics Incorporated Operating a touch screen control system according to a plurality of rule sets
US9703411B2 (en) 2009-04-30 2017-07-11 Synaptics Incorporated Reduction in latency between user input and visual feedback
US9304619B2 (en) 2009-04-30 2016-04-05 Synaptics Incorporated Operating a touch screen control system according to a plurality of rule sets
US9052764B2 (en) 2009-04-30 2015-06-09 Synaptics Incorporated Operating a touch screen control system according to a plurality of rule sets
US20100315427A1 (en) * 2009-06-15 2010-12-16 Nvidia Corporation Multiple graphics processing unit display synchronization system and method
US9135675B2 (en) 2009-06-15 2015-09-15 Nvidia Corporation Multiple graphics processing unit display synchronization system and method
US8766989B2 (en) 2009-07-29 2014-07-01 Nvidia Corporation Method and system for dynamically adding and removing display modes coordinated across multiple graphics processing units
US20110025696A1 (en) * 2009-07-29 2011-02-03 Nvidia Corporation Method and system for dynamically adding and removing display modes coordinated across multiple graphcis processing units
US20110210976A1 (en) * 2009-09-16 2011-09-01 Nvidia Corporation Techniques for transferring graphics data from system memory to a discrete gpu
US8780122B2 (en) 2009-09-16 2014-07-15 Nvidia Corporation Techniques for transferring graphics data from system memory to a discrete GPU
US20110148436A1 (en) * 2009-12-18 2011-06-23 Synaptics Incorporated System and method for determining a number of objects in a capacitive sensing region using signal grouping
US20110148438A1 (en) * 2009-12-18 2011-06-23 Synaptics Incorporated System and method for determining a number of objects in a capacitive sensing region using a shape factor
US20110157189A1 (en) * 2009-12-31 2011-06-30 Nvidia Corporation Shared buffer techniques for heterogeneous hybrid graphics
US9111325B2 (en) 2009-12-31 2015-08-18 Nvidia Corporation Shared buffer techniques for heterogeneous hybrid graphics
US20110245946A1 (en) * 2010-04-01 2011-10-06 Boo-Jin Kim Low power audio play device and method
US9563253B2 (en) * 2013-03-12 2017-02-07 Intel Corporation Techniques for power saving on graphics-related workloads
US20140281615A1 (en) * 2013-03-12 2014-09-18 Selvakumar Panneer Techniques for power saving on graphics-related workloads
US9818379B2 (en) 2013-08-08 2017-11-14 Nvidia Corporation Pixel data transmission over multiple pixel interfaces
US9842532B2 (en) 2013-09-09 2017-12-12 Nvidia Corporation Remote display rendering for electronic devices

Also Published As

Publication number Publication date
EP1221645A3 (fr) 2004-06-16
JP2002287859A (ja) 2002-10-04
EP1221645A2 (fr) 2002-07-10

Similar Documents

Publication Publication Date Title
US20020087225A1 (en) Portable computing device having a low power media player
US7444439B2 (en) Audio controller for portable electronic devices
CN1542588B (zh) 能够在无源状态下访问数据的计算机系统及方法
US6629000B1 (en) MPEG portable sound reproducing system and a reproducing method thereof
EP1440444B1 (fr) Lecteur multimedia a capacite de lecture instantanee
KR100705047B1 (ko) 컴퓨터 장치용 저전력 디지털 오디오 복호화/플레이시스템
CA2383972C (fr) Procede et appareil permettant de prolonger la duree de vie d'une batterie dans un dispositif electronique portable
US8683238B2 (en) Mobile system on chip (SoC) and a mobile terminal including the mobile SoC
EP1257895B1 (fr) Systeme de commande audio pour dispositifs electroniques portatifs
US7522965B2 (en) Low power digital audio decoding/playing system for computing devices
US20010005878A1 (en) Data reproduction device
US20030226119A1 (en) Integrated circuit design of a standard access interface for playing compressed music
JPH0492297A (ja) 記録再生装置
US20030058748A1 (en) Interface apparatus that can reproduce audio data by itself
KR20020075428A (ko) 휴대용 전자 장치용 오디오 컨트롤러
KR20080027017A (ko) 착탈식 하드디스크를 구비한 휴대용 미디어 플레이어
JPH02170197A (ja) 音声応用システム
JPH09179788A (ja) アクセス記憶装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: HEWLETT-PACKARD COMPANY, COLORADO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HOWARD, GARY M.;REEL/FRAME:011532/0183

Effective date: 20010103

AS Assignment

Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HEWLETT-PACKARD COMPANY;REEL/FRAME:014061/0492

Effective date: 20030926

Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.,TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HEWLETT-PACKARD COMPANY;REEL/FRAME:014061/0492

Effective date: 20030926

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION